Patents by Inventor Stella C. Bonnevaux

Stella C. Bonnevaux has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Guanidine derivatives having hypotensive activity, composition containing them and process for obtaining them
    Patent number: 5059624
    Abstract: Guanidine derivatives of the following formulas (1) and (2): ##STR1## wherein: R.sup.1 is hydrogen or optionally substituted cinnamoyl,R.sup.2 is hydrogen, alkyl or alkenyl, with the proviso that R.sup.1 and R.sup.2 cannot be both hydrogen,n is an integer from 1 to 8, or: ##STR2## wherein R.sup.3 is truxinoyl or a truxilloyl each optionally substituted, andR.sup.2 and n are as defined above;pharmaceutical compositions containing such compounds and a process for their extraction and purification from plant material, in particular from Verbesina caracasana.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: October 22, 1991
    Assignee: Consiglio Nazionale Delle Ricerche
    Inventors: Giuliano D. Monache, Franco D. Monache, Marco Carmignani, Stella C. Bonnevaux, Romulo Espinal, Carlo De Luca, Bruno Botta